On Friday, Mattingly asked Ryu to make his first exhibition start, and the lefty responded with two scoreless innings. It is Ryu's second spring with the Dodgers, and he said he's more comfortable this time around.

He's also the club's resident expert on trans-Pacific jet lag, so he had this advice for his teammates.

"It depends on the individual, but it usually takes about a week for the body to adjust," Ryu said. "The best thing to do is not sleep in the day or take a nap. Just play."

Ryu allowed two hits without a walk to the White Sox. He was most pleased with his command, agreeing that he reported to camp in much better physical shape than a year ago.

"Last year, I didn't know what to expect. This year I'm more comfortable," he said.

The lefty said his goal for this year, aside from the team winning a championship, is to stay healthy. Ryu pitched 192 innings in 2013, and stayed off the disabled list, skipping one start after taking a batted ball off his foot.